public void SynchronisedDoubleEndedQueueTryDequeueAtItemFromFrontReturnsFalseIfQueueDoesNotContainItems()
{
var deque = new SynchronisedDeque <int>();
int i;
bool result = deque.TryDequeueAtItemFromFront(out i);
Assert.IsFalse(result);
}
public void SynchronisedDoubleEndedQueueTryQueueAtItemFromFrontReturnsTrueIfQueueContainsItems()
{
var items = new[] { 1, 2, 3, 4, 5, 6, 7, 8 };
var deque = new SynchronisedDeque <int>(items);
int i;
bool result = deque.TryDequeueAtItemFromFront(out i);
Assert.IsTrue(result);
}
public void SynchronisedDoubleEndedQueueTryDequeueAtItemFromFrontRemovesItemFromFront()
{
var items = new[] { 1, 2, 3, 4, 5, 6, 7, 8 };
var deque = new SynchronisedDeque <int>(items);
int i;
deque.TryDequeueAtItemFromFront(out i);
Assert.AreEqual(7, deque.Count);
}
public void SynchronisedDoubleEndedQueueSupportsDequeueingFromFrontUntilQueueIsEmptyMultiThreaded()
{
var items = new[] { 1, 2, 3, 4, 5, 6, 7, 8 };
var deque = new SynchronisedDeque <int>();
deque.EnqueueRangeToFront(items);
List <Task> tasks = new List <Task>();
for (int i = 0; i < items.Length * 2; i++)
{
tasks.Add(Task.Factory.StartNew(() =>
{
int j;
deque.TryDequeueAtItemFromFront(out j);
}));
}
Assert.DoesNotThrow(() => Task.WaitAll(tasks.ToArray()));
Assert.AreEqual(0, deque.Count);
}